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Record: 10235 (26/09/2023)
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GCR/LNER Robinson "B6" Class 4-6-0


Class Types
GCR Class 8N
LNER Class B6

General
Designer John Robinson
Introduced 1918
Pre-Grouping Company Great Central Railway
Grouping Company London and North Eastern Railway
Wheel Arrangement 4-6-0
Number Built as B6 3
Number Scrapped 3
First in Service 07/1918
Last in Service 31/12/1947
Manufacturers
ManufacturerTotal
Gorton Works 3
Orders
BuilderSponsorOrder #DateSize
Gorton Works  n/a 3

Illustration
Copyright: Phil Seaford
Power
Variant Introduced 1918
Tractive Effort 25,798lbs
Outside Cylinders 21" x 26" (2 off)
Outside Valves 10"Piston
Outside Motion Stephenson

Wheels
Pony 3' 6"
Drivers 5' 8"
Locomotive Wheelbase 27' 6"
Tender Wheelbase 13'
Total Wheelbase 50' 812"
Descriptive Wheelbase 6' 6" + 5' 9" + 6' 9" + 8' 6" + (10' 2½") + 6' 6" + 6' 6" = 50' 8½"

Dimensions
Length (over buffers) 61' 212"
Weight (in running order) 121t 4cwt
Weight (loco only) 72t 18cwt
Adhesive Weight 48t 6cwt
Maximum Axle Load 18t 4cwt
Water Capacity 4,000gal
Coal Capacity 6t 0cwt

Boiler & Firebox
Boiler Diagram 15B
Boiler Max Diameter 5' 6"
Boiler Barrel Length 15'
Boiler Pressure 180lbs
Boiler Pitch 8' 11"
Firebox Type Belpaire
Firebox Length 8' 6"
Firebox Grate Area 26.24ft2
Firebox Heating Surface 174ft2
Tube Number 116
Tube Diameter 214"
Tube Area 1050ft2
Flue Elements 28
Flue Diameter 514"
Flue Area 591ft2
Total Evaporative Area 1815ft2
Superheater Elements 28
Superheater Element Diameter 1.087"
Superheater Element Area 308ft2
Total Heating Area 2123ft2